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Finding the Fourth Proportional to 1,182.79, 1,775.28 and 598.20

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Solution

The fourth proportional to 1,182.79, 1,775.28 and 598.20 is: 897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.79 : 1,775.28 = 598.20 : x
  2. Step 2: Convert to fraction form
    1,182.79/1,775.28 = 598.20/x
  3. Step 3: Cross multiply
    1,182.79x = 1,775.28 × 598.20
  4. Step 4: Simplify right side
    1,182.79x = 1,061,975.44
  5. Step 5: Solve for x
    x = 1,061,975.44/1,182.79
  6. Step 6: Final answer
    x = 897.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.